pfam14460: Prok-E2_D (494284 is an unknown moldel)
Prokaryotic E2 family D
A member of the E2/UBC superfamily of proteins found in several bacteria. Members of this family lack the conserved histidine of the classical E2-fold. However, they have an absolutely conserved histidine carboxyl-terminal to the conserved cysteine. Members of this family are usually present in a conserved gene neighborhood with genes encoding members of the Ub modification pathway such as the E1, Ub and JAB proteins. These neighborhoods also contain a gene encoding a rapidly diverging alpha-helical protein.
Jiyao W et al.(2023). "The conserved domain database in 2023.",